Lean Six Sigma Yellow Belt (LSSYB) — Question 4

When a process has proven itself to function at a Six Sigma level this means there are less than ________ defects per million opportunities.

Answer options

• A. 1.7
• B. 2.6
• C. 3.4
• D. 10

Correct answer: C

Explanation

The correct answer is C, as achieving Six Sigma means there are fewer than 3.4 defects per million opportunities. Options A, B, and D do not represent the correct threshold for Six Sigma quality, which is specifically defined at 3.4 defects.